Answer
$6.5\frac{\text{ books}}{\text{ college students}}$
Work Step by Step
8125 books to 1250 college students --> $\frac{8125\text{ books}}{1250\text{ college students}}=\frac{8125\text{ books}\div1250}{1250\text{ college students}\div1250} = 6.5\frac{\text{ books}}{\text{ college students}}$